Plumb level and transit combination



Sept. 7 1926. 1,599,122

- J. E. EUBANK- PLUMB LEVEL AND TRANSIT CGMBINATION Filed Sept. 17, 1923I I I 4\ \n x \J\\ l\ \I\ (2 I SECT/a/YA-A KIM ' I I I I I l l l l l I lI l l I I l I l l I I I l I L l F I II II ll F7 INVENTOR- Patented Sept.7, 1926.

* UNITED STATES PATENT 0F JOSIAH, E. EUBANK, OFN W YORK, N. Y.

This invention is a combination plumb level and transit, and the objectis to provide a simple and practical instrument of this character forthe use of mechanics.

In the drawing Figure 1 is a sideelevation of the instrument AA ofFigure 1.

The. invention consists of a rectangular bar 1, made of wood or anyother suitable material, and having a bore 2 (pierced through i the barfrom end to end along each edge thereof,) to serve as peep-holes foraligning the instrument with distant objects. Transversely through thecenter of the bar 1 is cut a circular hole 3, the diameter of which isslightly less than the distance between the axes of the peep holes 2,adapted to serve as a housing for the working elements' of theinstrument. WVithin this hole is mounted an annular ball race 4,inclosed at each side by an annular celluloid facing, or calibrationring 5, each having outer faces inclined inwardly, as shown. Any desiredsystem of markings or calibrations may be represented upon these rings5. Balls 8 are placed within the race 4, and a plumb wheel 6, having aconcaved periphery 7 to adapt it for the proper seating and to hold itin place, is mountedupon the balls 8. The wheel 6 is loaded with a plumbweight 9 located on one side of the Wheel, and which normally turns tothe bottom because of its weight. Indicators 10 are mounted on each sideof the wheel at opposite points and extended out over the rings 5, fourof these Figure 2 is a top plan view; Figure 3 IS a cross sectional Viewon line PLUMB LEVEL AND TRANSIT COMBINATION.

Application filed September 17, 1923. Serial No. 663,047.

of transit.

claim.

I claim \Vhile I have herein describ FFICE.

indicators, two diametrically positioned on each side of the wheel,being located (as 46 shown immediately under the weight 9.) Thisinstrument may be readily adapted for use as a plumb or as a level,since the weight 9 will of course seek its lowest gravational point andthe indicators 10 will show 5 the degrees of inclination from theperpendicular or horizontal upon the calibrated rings 5. The instrumentmay be sighted through either of the peep holes 2, and with either edgeof the instrument uppermost, thusmaking it adaptable for use as a sort Adevice of the kind described, comprising a rectangular bar having a bore(as shown pierced therethrough from end to end along each edge) andhaving a central, transverse, circular housing hole cut therethrough; anannular ball race mounted within the periphcry. of the hole; annularfacings for the sides of the ball race, the same having suitablemarkings thereon; balls mounted in the race; a weighted plumb wheelriding on the said balls; and indicators extended from the wheel outover the said facings.

In testimony whereof I aflix my signature.

JOSIAH E. EUBANK.

ed a certain specific manner and method of constructing and assemblingthe elements of my invention, it is understood that I may vary from thesame in minor details, not departing from the spirit of my invention, soas best to construct a practical device for the purpose intended, asdefined in the appended

